Around 11:40 a.m., the funeral procession left the chapel, heading to a burial site where Haim was to be buried.

Noticeably absent: Corey Feldman. On Monday, he said he was staying in Los Angeles to mourn because Haim's family wanted the funeral to be "a small private affair." (He is currently planning a memorial next month.)

Feldman's second cousin Maytal Kotler attended Tuesday's service and told the Toronto Star it was "very sad but with a lot of laughter."

In a 2007 interview on CNN's Larry King Live, Haim claimed he kicked drugs. Asked why he finally stopped abusing drugs, he said: "I didn't like looking in the mirror anymore. I couldn't do it."

Haim told King he had an addiction "to pretty much everything. "I mean, I have to be very careful with myself as far as that goes, which is why I have a support group around me consistently," said Haim, who referred to himself as "a chronic relapser for the rest of my life."

Despite years of struggling to say sober, Haim was "honestly in the best frame of mind that he's ever been in in the past year," Feldman, 38, recently told Larry King.

He said that Haim was helping his mother in her battle against breast cancer. This past year, "he's really become a man," added Feldman. "He's been there for her, taking care of her, being responsible."

UPDATE: Heartbreaking audio from the frantic 911 call placed by Haim's mother, Judy, on the night of his death has been released. "I think my son is dead," Judy tells the dispatcher tearfully. "He's not breathing. I'm alone with my son and I don't know what I'm doing."